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CVE-2025-14819

5.3 · MEDIUM

When doing TLS related transfers with reused easy or multi handles and altering the `CURLSSLOPT_NO_PARTIALCHAIN` option, libcurl could accidentally reuse a CA store cached in memory for which the…

Published Jan 8, 2026CWE-295EPSS 0.76%

Overview

CVE-2025-14819 is a medium-severity vulnerability. It was published on January 8, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

When doing TLS related transfers with reused easy or multi handles and

altering the `CURLSSLOPT_NO_PARTIALCHAIN` option, libcurl could accidentally

reuse a CA store cached in memory for which the partial chain option was

reversed. Contrary to the user's wishes and expectations. This could make

libcurl find and accept a trust chain that it otherwise would not.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refcurl.se/docs/CVE-2025-14819.htmlRefcurl.se/docs/CVE-2025-14819.jsonRefwww.openwall.com/lists/oss-security/2026/01/07/5

How CyberStrike helps

Frequently asked questions

What is CVE-2025-14819?

CVE-2025-14819 is a medium-severity vulnerability. It was published on January 8, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-14819?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-14819?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-14819?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-14819 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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